JP5437022B2 - Combine - Google Patents

Description

  The present invention relates to a combine equipped with a discharge auger for discharging grains.

  A traveling machine body and a discharge port for discharging the grain are formed on the distal end side, and the base end side is supported by the traveling machine body side so that the posture can be changed, and the grains stored in the traveling machine body side are discharged from the discharge port. A combine with a discharge auger is conventionally known.

  In such a combine, after the cutting operation, the traveling machine body is positioned in the field, and the grains discharged from the discharge port of the discharge auger are put into a loading platform such as a truck, whereby the grains stored on the traveling machine body side Is generally moved to a platform outside the field.

  By the way, conventionally, in order to uniformly put the grains into the loading platform, a means for horizontally turning the discharge auger or moving the combine to the side approaching the loading platform or the side moving away from the loading platform was generally used. Thus, when adjusting the position of the discharge port with respect to the loading platform, it is difficult to finely adjust the discharge port position, and the grains discharged from the discharge port due to the failure of position adjustment are not put into the loading platform, and the loading platform In some cases, it may be difficult to finely move the combine depending on the field conditions.

  Under such circumstances, the discharge cover body that covers at least a part of the lower periphery of the discharge port and prevents the scattering of the grain from the discharge port, and the tilt change supported by the rotation adjustment is supported by the rotation adjustment. The combine shown in patent document 1 which provided the guide body which changes the discharge direction of a grain by is known.

Japanese Utility Model Publication No. 8-6432

The combine described in the above document can change the grain discharge location along the formation direction of the discharge auger in a plan view without causing the combine to travel by changing the inclination of the guide body. During the dynamic adjustment, when the rotational position of the guide body is visually checked, the discharge cover body is obstructed, and the inclined state of the guide body cannot be confirmed well. There is a problem that it may not be performed accurately and easily.
The present invention includes a discharge auger that has a discharge port formed on the tip side and is supported on the traveling machine body side so that the posture can be changed and that discharges the grains stored on the traveling machine body side from the discharge port. A discharge cover body that covers at least a part of the lower periphery and prevents the scattering of the grain from the discharge port, and a guide that is supported so as to be rotatable and can change the grain discharge direction by changing the inclination by the rotation adjustment. In a combine provided with a body, it is an object to provide a combine capable of accurately and easily changing a grain discharge direction by a discharge auger.

In order to solve the above-described problem, the combine of the present invention is configured such that the traveling machine body 7 and the discharge port 13 for discharging the grain are formed on the distal end side, and the base end side is supported on the traveling machine body 7 side so that the posture can be changed. A discharge auger 12 that discharges the grain accommodated on the traveling machine body 7 side from the discharge port 13, and a discharge cover that covers at least a part of the lower periphery of the discharge port 13 and prevents scattering of the grain from the discharge port 13. A guide body 28 is provided on the inner surface side of the discharge cover body 18 and is supported on the discharge cover body 18 so as to change the inclination of the grain by changing the inclination by the rotation adjustment. only set the visibility means viewing the inclination of the guide body 28 through the moving adjustment, impermeable with a lower part and a transparent cover 56 of the exhaust cover 18, the upper portion than the transparent cover 56 and second outlet cover body 18 When the portion is rotated to the dischargeable range X where the grain can be discharged, at least a part of the guide body 28 faces the transparent cover 56 side, while the grain is not discharged or hardly discharged. When the guide body 28 is rotated so that the guide body 28 is accommodated in the non-transparent portion and does not face the transparent cover 56 side, the visual means is It is characterized by the construction .

  According to the present invention, when changing the grain discharge direction of the discharge auger by changing the inclination state by rotating the guide body, the rotation of the guide body is adjusted while visually checking the inclination state of the guide body. Therefore, it is possible to change the grain discharge direction by the discharge auger accurately and easily.

  Further, a camera or the like is installed by configuring the visualizing means by arranging at least a part of the discharge cover body with a transparent cover and arranging the guide body so that at least a part of the guide body faces the transparent cover side. There is an effect that the inclined state of the guide body can be visually observed at a lower cost than the case.

It is a side view of a combine to which the present invention is applied. It is a top view of a combine to which the present invention is applied. It is a side view of the front end side of a discharge auger. It is a front view of the front end side of a discharge auger. It is a disassembled perspective view of the front end side of a discharge auger. It is a sectional side view of the discharge auger front end side showing a state where the guide plate is not applied. It is a sectional side view of the discharge auger front end side showing a state where a guide plate is applied. It is a block diagram which shows the structure of a control part. (A) is a top view of the combine which shows the horizontal turning range of an auger, (B) is a rear view of the combine which shows the raising / lowering range of an auger. It is a conceptual diagram which shows the structure of the opening-and-closing control of the discharge port by the guide plate which functions as a switching means. (A) is a side sectional view of the auger tip side showing the configuration of the rotation control of the guide plate, (B) is a plan view of the main part of the operating means. (A) is a top view of a truck and a combine which shows the state of horizontal rotation adjustment of an auger at the time of throwing a grain from a combine into a truck bed, and (B) throws a grain from a combine into a truck bed It is a figure which shows the state of the discharge direction adjustment of the grain by the guide plate at the time, (C) is a front view of a truck and a combine which shows the state at the time of throwing a grain into the loading platform of a truck from a combine. It is a conceptual diagram which shows the structure of the opening-and-closing control of the discharge port by the guide plate which functions as a switching means regarding another embodiment of this combine. Regarding another embodiment of this combine, (A) is a side sectional view of the auger tip side showing the structure of the rotation control of the guide plate, and (B) is a plan view of the main part of the operating means. It is a sectional side view which shows the structure by the side of the front part of an auger regarding another embodiment of this combine. It is a side view which shows the structure of the front end side of a discharge auger regarding another embodiment of this combine. It is a sectional side view which shows the structure of the front end side of a discharge auger regarding another embodiment of this combine. It is a perspective view which shows the structure of the front end side of a discharge auger regarding another embodiment of this combine. (A) is an arrow A view of FIG. 16, (B) is an arrow B view of FIG.

Embodiments of the present invention will be described below based on the illustrated example.
1 and 2 are a side view and a plan view of a combine to which the present invention is applied. In the illustrated combine, the threshing unit 3 is installed in the left half of the machine frame 2 supported by a pair of left and right crawler type traveling devices (travel units) 1L and 1R, and the vehicle is operated in front of the right half of the machine frame 2. A traveling machine body 7 is configured by providing a seat 4 and a Glen tank 6 disposed on the rear side, and a pre-processing unit 8 that performs grain harvesting work is connected and supported in front of the traveling machine body 7 so as to be driven up and down. ing.

  The cereals harvested by the preprocessing unit 8 are conveyed to the threshing unit 3 of the traveling machine body 7 by the conveying device 9 of the preprocessing unit 8 and passed to the feed chain 11 in the front-rear direction. The cereals that are conveyed backward along the threshing unit 3 by the feed chain 11 are threshed and discharged to the outside from the rear end of the traveling machine body 7 while being threshed. The processed product is sorted into grains such as straw and other scraps, etc., the grains are stored in the glen tank 6, and the sawdust is discharged from the rear end of the traveling machine body 7 to the outside of the machine. The

  The grain accommodated in the Glen tank 6 is a discharge port 13 formed at the distal end of an auger (discharge auger) 12 whose base end is supported on the right side of the rear portion of the traveling machine body 7 (see FIGS. 5 to 7). Is discharged from the machine.

  The auger 12 has a vertical cylinder 14 in the vertical direction supported on the right side of the rear end of the traveling machine body 7 so as to be rotatable around its own axis, and a base end portion of the vertical cylinder 14 is driven to swing up and down at the upper end of the vertical cylinder 14. A discharge cylinder 16 that is supported and extends linearly from the base end portion toward the tip end portion. That is, the auger 12 supported at the base end side so that the posture can be changed is turned horizontally by turning the vertical cylinder 14 around the axis, and the discharge cylinder 16 is swung up and down with respect to the vertical cylinder 14. Go up and down.

  And the grain in the Glen tank 6 is conveyed to the base end side of the discharge cylinder 16 by the up-down spiral (not shown) supported in the vertical cylinder 14, and the grain on the base end side of the discharge cylinder 16 The particles are transported to the front end side in the discharge cylinder 16 by the discharge spiral 17 (see FIGS. 5 and 6) extending in the axial direction in the discharge cylinder 16 and discharged downward from the discharge port 13.

  From the tip of the auger 12, a cylindrical discharge cover body 18 having a cross-sectional view shape surrounding and covering directly below the discharge port 13 is integrally extended downward. The discharge cover body 18 is configured to guide the grain downward while covering the periphery of the grain discharged downward from the discharge port 13 and preventing scattering.

  3 and 4 are a side view and a front view of the distal end side of the discharge auger, and FIG. 5 is an exploded perspective view of the distal end side of the discharge auger. On the lower surface side of the auger 12, the above-described discharge port 13 that is opened in a square shape is formed, and from the base edge that is the edge closer to the base end side of the auger 12 of the discharge port 13. An auxiliary cover 19 projects integrally downward, and the tip edge of the discharge port 13 reaches the tip of the auger 12 (tip of the discharge tube 16).

  The upper end of the auxiliary cover 19 is fixed to the discharge cylinder 16 by welding or the like, and both ends of the auxiliary cover 19 in the horizontal turning direction are bent toward the base end side of the auger 12 to form a U-shaped groove as a whole, The extension amount of the auxiliary cover 19 from the surface is considerably smaller than the extension amount of the discharge cover body 18.

  The discharge cover body 18 includes a main cover 21 whose upper end is fixed to the circumferential surface of the auger 12 by welding or the like, and a sub cover 22. The main cover 21 includes a proximal end side wall 23 which is a side wall closer to the proximal end side of the auger 12, a distal end side wall 24 which is a side wall closer to the distal end side of the auger 12, and a proximal end side wall 23 and a distal end. This is a U-shaped groove-like member formed by bending a rectangular plate-like member so as to have a connecting wall 26 that is a side wall connecting the side wall 24. The sub-cover 22 is a side wall that is located on the opposite side of the connecting wall 26 across the proximal side wall 23 and the distal side wall 24 and is fixed between the proximal side wall 23 and the distal side wall 24. The sub-cover 22 and the main cover 21 form a discharge cover 18 having a cross-sectional shape.

  More specifically, mounting seats 23a and 24a are formed at the ends of the proximal side wall 23 and the distal side wall 24 where the sub-covers 22 abut, and the mounting seats 23a and 24a on the circumferential surface of the auger 12 are formed. A cover bracket 27 extending in the axial direction of the auger 12 is formed in the vicinity of the upper side of the auger 12, while an upper end portion of the sub cover 22 is bent outward to form an abutting portion 22 a. The sub cover 22 is installed between the pair of mounting seats 23a, 24a, and the sub cover 22 is bolted to the mounting seats 23a, 24a and the cover bracket 27 in a state where the contact portion 22a is in contact with the cover bracket 27. By fixing, the sub cover 22 is attached to the main cover 21 and the auger 12.

  In addition, since the base end side wall 23 is disposed closer to the base end side of the auger 12 than the base end edge of the discharge port 13, the discharge cover body 18 has a position directly below the discharge port 13, It is comprised so that the area | region which consists of the location located in the diagonally downward side toward the base end side of the discharge auger 18 from the discharge port may be enclosed. A guide plate 28, which is a rectangular plate-like guide body that changes the discharging direction of the grain from the discharge port 13, is supported on the distal end side wall 24 side in the discharge cover body 18.

Next, the configuration of the guide plate 28 will be described with reference to FIGS.
The guide plate 28 is supported by the discharge cover body 18 so as to be rotatable via a rotation shaft 29 that is installed between the sub cover 22 and the connecting wall 26 so as to be rotatable about the axis. The end portion on the side of the sub-cover 22 is bent toward the base-side side wall 23 side and faces the sub-cover 22 in a close state, while the end portion on the connecting wall 26 side of the guide plate 28 is also the base portion. It is bent at the side of the end side wall 23 and faces the connecting wall 26 in a close state.

  The specific support structure of the guide plate 28 will be described. The guide plate 28 is oriented in a direction perpendicular to the opposing surfaces of the sub-cover 22 and the connecting wall 26 and is disposed in the vicinity of the upper end of the front end side wall 24 in the discharge cover body 18. The rotating shaft 29 is inserted into and fixed to a cylindrical portion 28a integrally formed on the base end side which is the upper end portion of the guide plate 28. In this state, both end portions of the rotating shaft 29 are fixed. The distal end side (lower part) of the guide plate 28 is separated from the distal end side wall 24 by being inserted into and supported by the connecting wall 26 and the insertion holes 18 a and 18 b of the sub cover 22 so as to be rotatable around its own axis. The entire guide plate 28 is rotatably supported so as to be close to each other. In other words, the guide plate 28 is supported on the side approaching the base end side of the auger 12 and the side moving away from the auger 12 so as to be adjustable.

  The guide plate 28 having such a support structure is rotationally driven by the drive device 31. The drive device 31 includes a support member 32 fixed to the outer surface of the sub cover 22 by welding, a motor 33, a mounting bracket 34 for mounting and supporting the motor 33 on the support member 32, and the sub cover 22 on the rotation shaft 29. And a sector gear 36 that is attached to a portion protruding from the insertion hole 18 b to the outer surface side of the discharge cover body 18 and rotates integrally with the rotation shaft 29.

  The support member 32 is a U-shaped groove-shaped member whose inner surface is directed to the distal end side of the auger 12, and one end portion having a U-shape is fixed to the outer peripheral surface of the auger 12. The mounting bracket 34 is a U-shaped groove member whose inner surface is directed to the auger 12 side, and the mounting bracket 34 is supported by the inner surface of the mounting bracket 34 in a state where the outer surface of the support member 32 is fitted and inserted. 32 is bolted.

  The sector gear 36 is inserted into the mounting hole 36 a formed in the center portion of the fan, and the above-described rotation shaft 29 is inserted into the sector gear 36.

  The motor 33 is mounted and fixed on the outer surface side of the mounting bracket 34 described above, and is surrounded by the outer peripheral surface of the auger 12, the inner surface of the support member 32, and the inner surface of the mounting bracket 34, and opens toward the distal end side of the auger 12. A power transmission gear (not shown) that is constantly meshed with the sector gear 36 is supported in the installed space S by the power generated by the motor 33.

  According to such a driving device 31, the rotational power generated by the motor 33 is transmitted to the rotating shaft 29 via the transmission gear and the sector gear 36, so that the guide plate 28 is driven to rotate, and the distal end side wall is driven. 24, the inclination angle of the guide plate 28 is changed, and thereby the direction in which the grain is discharged from the outlet 13 is changed.

  The assembly process of these members will be briefly described. In a state where one end side of the rotating shaft 29 is inserted into the insertion hole 18a of the main cover 21, the other end side of the rotating shaft 29 is inserted into the sub cover 22. The sub cover 22 is bolted to the main cover 21 and the auger 12 so that the hole 18b is inserted. After that, the sector gear 36 is inserted and fixed to the other end side of the rotating shaft 29 protruding from the sub cover 22 and is prevented from coming off by the C ring 37, and then the motor 33 is attached to the sub cover 22 side via the mounting bracket 34. To complete the assembly.

  FIG. 6 is a side sectional view of the discharge auger tip side showing a state where the guide plate is not applied, and FIG. 7 is a side sectional view of the discharge auger tip side showing a state where the guide plate is applied. In the present combine, when the guide plate 28 is driven to rotate downward to the fully open position P1 closest to the front end side wall 24 (see FIG. 11), the guide plate 28 faces the front end side wall 24 in a close proximity. The guide plate 28 is switched to a fully open posture in which the distal end side faces the vicinity of the lower end portion of the discharge cover body 18, and in the fully open posture, the discharge port 13 is fully opened, and the non-actuated state hardly changes the grain discharge direction. (See FIG. 6).

  Further, when the guide plate 28 is driven to rotate upward to a fully closed position (closed position) P2 in which the distal end side approaches or contacts the auxiliary cover 19 (see FIG. 11), the guide plate 28 is moved in the axial direction of the discharge cylinder 16. In the fully closed position, the discharge port 13 is fully closed by the guide plate 28, and the grain is not discharged or hardly discharged from the discharge port 13. It becomes a state.

  In other words, the guide plate 28 functions as a shutter for closing the discharge port 13 so that the discharge port 13 can be opened and closed by being configured to be rotatable upward to a position where the discharge port 13 can be closed. In other words, the guide plate 28 constitutes switching means for switching the state of the discharge port 13 between a discharge state in which the grains are discharged and a non-discharge state in which the grains are not discharged.

  For this reason, the length from the base end to the front end of the guide plate 28 is set according to the length of the discharge port 13 in the axial direction of the discharge cylinder 16, and according to the set length, the length of the discharge cover body 18. A length extending downward from the auger 12 is also set.

  Further, when the guide plate 28 is rotationally driven between the fully open position P1 and the fully closed position P2, the inclination angle of the guide plate 28 with respect to the distal end side wall 24 is changed depending on the rotational position, and the discharge port The discharge direction of the grain from 13 is changed, and the opening degree of the discharge port 13 also changes with the change (see FIG. 7).

  When the grain is discharged from the discharge port 13, the grain enters the gap between the guide plate 28 and the tip side wall 24, and the grain whose discharge direction cannot be changed by the guide plate 28 is the discharge cover body 18. In order to prevent leakage from falling, the gap formed between the base end portion of the guide plate 28 and the distal side wall 24 is covered from above to guide the grain between the auxiliary cover 19 and the guide plate 28. An auxiliary guide cover 35 is extended from the front end side surface in the discharge cylinder 12.

  The rotation position of the guide plate 28 having the above-described configuration, the raising / lowering position and the horizontal turning position of the discharge auger are controlled by a control unit 38 (see FIG. 8) including a microcomputer or the like.

Next, the configuration of the control unit will be described with reference to FIGS.
FIG. 8 is a block diagram illustrating a configuration of the control unit. On the input side of the control unit 38, an auger operation lever 39 that is an auger manual operation means for manually operating the auger 12, and an auger that is an auger automatic turning operation means for automatically turning the auger 12 horizontally to a predetermined horizontal turning position. Automatic swivel switch 41, discharge switch 42 which is a discharge drive on / off operation means for performing on / off operation of grain discharge drive of auger 12, and detection that auger 12 has been raised to the uppermost position (upper limit position) An upper limit sensor 43 that is an auger upper limit position detecting means, a turning potentiometer 44 that is a turning position detecting means that detects the horizontal turning position of the auger 12, and a rotation position detecting means that detects the turning position of the guide plate 28. A rotation potentiometer 46 and an operating means 47 for changing the relative inclination angle of the guide plate 28 with respect to the distal end side wall 24 are connected.

  On the other hand, on the output side of the control unit 38, the auger turning motor 48 which is a turning means for horizontally turning the auger 12 by turning the vertical cylinder 14 about the axis, and the discharge cylinder 16 vertically by hydraulic expansion / contraction operation. The above-described auger elevating cylinder 49, which is an elevating means for elevating the auger 12 by swinging up and down with respect to the cylinder 14, and a discharge clutch (not shown) for intermittently transmitting power from the engine to the ascending helix and the discharging helix 17 are described above. A discharge clutch drive motor 51 which is an auger discharge drive on / off means for intermittent operation based on detection of an on / off operation of the discharge switch 42 and the above-described motor 33 are connected.

  The auger operation lever 39 is installed behind the seat 52 on which the operator of the driver's seat 4 is seated so as to be able to swing back and forth and to be able to swing left and right. The auger 12 is moved up and down by swinging back and forth 39, and the auger 12 is turned horizontally by swinging the auger operation lever 39 left and right.

  The auger automatic turning switch 41 is disposed so as to be pushed to the side of the auger operation lever 39. The auger 12 is stored in the upper side of the traveling machine body 7 in the front oblique direction from the base end side toward the front end side in a plan view, and obliquely right in plan view from the base end side to the front end side. The basic posture is a discharge posture that faces rearward and protrudes to the side of the traveling machine body 7. However, every time the auger automatic turning switch 41 is pressed once, the storage posture is changed to the discharge posture or the discharge posture is changed to the storage posture. Is switched.

  The discharge switch 42 is disposed on the side of the auger operation lever 39 so as to be pressed. The control unit 38 is configured to perform intermittent switching of the discharge clutch via the discharge clutch drive motor 51 every time the discharge switch 42 is pressed when a predetermined condition described later is satisfied. When the discharge clutch is connected, the grains in the glen tank 6 are discharged from the discharge port 13 of the auger 12, while when the discharge clutch is disconnected, from the discharge port 13 of the auger 12. The grain discharge is stopped.

  FIG. 9A is a plan view of the combine showing the horizontal turning range of the auger, and FIG. 9B is a rear view of the combine showing the lifting range of the auger. As shown in FIG. 2A, in this combine, the auger 12 is horizontally turned clockwise in a plan view from the horizontal turning position (storage position) C1 when the auger 12 is stored, and the leading end side of the auger 12 is on the right side. The auger 12 passes through a horizontal turning position (discharge position) C3 when the auger 12 is in the discharging posture, and the leading end side of the auger 12 is located behind the storage posture position. The horizontal turning position (turning limit position) C4 facing diagonally forward left is reached, and this range (range C1 to C4) is set as the horizontal turning range (turning range) D of the auger 12.

  In this turning range D, the control unit 38 lowers the auger 12 from the upper limit position in the range immediately before the storage posture position C1 to the dischargeable position C2 without connecting the discharge clutch (not discharging the grain). While the non-discharge range (auger lowering prohibition range) d1 is not set, the turning limit position C4 passes through the discharge posture position C3 from the dischargeable position C2 which is a range other than the non-discharge range d1 in the turning range D. Is set to a discharge range (dischargeable range) d2 in which the discharge clutch can be connected and operated and the auger 12 can be lowered from the upper limit position.

  In other words, when the auger 12 is located within the non-discharge range d1, the auger 12 is positioned at the upper limit position, and the discharge clutch is not connected even if the discharge clutch 42 is operated by the discharge switch 42. The control unit 38 is configured so that the cut state is maintained and the auger 12 does not descend even when the auger 12 is lowered by the auger operation lever 39. On the other hand, when the auger 12 is located in the discharge range d2, the discharge clutch 42 is intermittently engaged by the discharge switch 42 in accordance with the intermittent operation of the discharge clutch, and the auger operation lever 39 can be lowered. The control unit 38 is configured to be in a state. For this reason, at the time of switching the posture from the storage posture to the discharge posture, the auger 12 is driven up to the upper limit position at the storage posture position C1, and then the horizontal turning drive to the discharge posture position C3 is executed.

  Further, as shown in FIG. 4B, in the illustrated example, the upper limit sensor 43 sets the upper limit position of the auger 12 to a position rotated 45 degrees upward from the horizontal direction.

  FIG. 10 is a conceptual diagram showing a configuration of the opening / closing control of the discharge port by the guide plate functioning as the switching means. When the control unit 38 detects that the auger 12 is horizontally turned from the discharge range d2 to the non-discharge range d1 based on the sensing result of the turn potentiometer 44, the motor 33 and the turn potentiometer 46 The discharge port 13 is switched to the non-discharge state by rotating the guide plate 28 upward to the fully closed position P2.

  On the other hand, while the control unit 38 detects the connection operation of the above-described discharge clutch that performs intermittent operation of driving to discharge the discharge auger 12 so that the grain is discharged from the discharge port 13 by the discharge switch 42, When the turning potentiometer 44 detects that the auger 12 is located in the discharge range d2, the guide plate 28 is rotated downward to the fully open position P1 by the motor 33 and the rotation potentiometer 46, and the discharge port 13 is discharged. Switch to.

  Thus, if this combine is comprised so that switching with the discharge part 13 of a discharge port 13 and a non-discharge state may be automatically performed by the control part 38 with the horizontal turning of the auger 12, grain discharge | emission is not performed originally. In such a state, the discharge port 13 is switched to the discharge state, and it is possible to prevent the grains that have accumulated in the discharge port 13 from accidentally leaking out of the discharge port 13, while the discharge clutch is connected to operate to discharge the grain. When discharging from the outlet 13, a situation where the discharge port 13 is in a non-discharge state is also prevented.

  In the illustrated example, the guide plate 28 that changes the grain discharge direction from the discharge port 13 constitutes switching means for switching between the discharge state and the non-discharge state of the discharge port 13. Even if the tip part including the discharge port 13 of the cylinder 16 is formed separately from the other part and is supported so as to be rotatable around the axis of the discharge cylinder 16 with respect to the other part, the switching means is configured. Good. In this case, the discharge port 13 is turned upward by turning the tip portion around the axis and the discharge port 13 is switched to the non-discharge state, while the discharge port 13 is turned down by turning the tip portion around the axis. The discharge port 13 is switched to the discharge state.

  Further, when the above-described operation of connecting the discharge clutch is detected by the discharge switch 42, even if the turning potentiometer 44 detects that the auger 12 is located in the discharge range d2, the guide body 28 is in the fully closed position P2. When the discharge port 13 is in the discharge state, the guide plate 28 is not rotated to the full open position P1 but is held at that position. The part 38 may be configured.

  FIG. 11A is a side sectional view of the auger tip side showing the structure of the rotation control of the guide plate, and FIG. 11B is a plan view of the main part of the operating means. When the auger 12 is located in the non-discharge range d1, the control unit 38 maintains the non-discharge state of the discharge port 13 while the auger 12 is positioned in the discharge range d2. The rotation position of the guide plate 28 can be changed by the means 47.

  Specifically, the operation means 47 is configured by a dial operation tool, and the guide plate 28 rotates to a position corresponding to the rotation operation position of the dial operation tool 47 in the range between the fully open position P1 and the fully closed position P2. The control unit 38 is configured to be driven. In other words, even after the discharge port 13 is automatically switched to the discharge state by the switching means 47 as described above, the rotation position of the guide plate 28 can be changed by the dial operation tool 47 during the grain discharge.

  Further, when the discharge clutch is connected and the grain is discharged from the discharge port 13 of the auger 12, when the guide plate 28 is rotated closer to the fully closed position P (on the proximal side wall 23 side) by a predetermined amount or more, The opening degree of the discharge port 13 becomes too low, causing problems such as clogging of grains near the discharge port 13.

  Therefore, the control unit 38 sets the position rotated from the fully open position P1 toward the fully closed position P2 by a predetermined angle as the prohibited position P3, and sets the range from the fully open position P1 to the prohibited position P3 as the dischargeable range X1. The range closer to the fully closed position P2 than the prohibited position P3 is set as the discharge prohibited range X2. While the discharge clutch is connected, even if the dial operating tool 47 is operated to rotate the guide body 28 into the discharge prohibition range X2, the guide body 28 can be discharged. The control unit 38 is configured so as to be held in the inside and not rotated to the discharge prohibition range X2. That is, the control unit 38 constitutes a restricting means for restricting the rotation of the guide plate 28 more than a predetermined amount toward the proximal end side wall 23. In addition, a mark is provided around the dial operation tool 47 so that the guide plate 28 can be rotated to the fully open position P1, the fully closed position P2, and the forbidden position P3 together with the scale. The dial operation tool 47 is configured so that it cannot be stopped at the operation position where the guide plate 28 is positioned in the discharge prohibition range X2, and when the hand is released at that position, the guide plate 28 is positioned at the fully closed position P2. The dial operation tool 47 is rotated to either the operation position or the operation position where the guide plate 28 is positioned at the prohibition position P3.

  Incidentally, in the example shown in the figure, the position rotated approximately 45 degrees from the fully open position P1 toward the fully closed position P2 is set as the prohibit position P3. The prohibit range P3 is from the base edge of the discharge port 13. The distance from the proximal end side wall 23 of the discharge cover body 18 to the proximal end side wall 23 of the discharge cover body 18 varies depending on how far the distance from the proximal end side wall 23 of the discharge cover body 18 changes. The distance between the proximal end side wall 23 and the distal end side wall 24 of the discharge cover body 18 is set to a length of about 40% to 30%.

  FIG. 12 (A) is a plan view of the truck and the combine showing the state of the horizontal turning adjustment of the auger when the grain is put into the truck bed from the combine, and (B) is the plan view of the grain from the combine to the truck bed. It is a figure which shows the state of the discharge direction adjustment of the grain by the guide board at the time of throwing in, (C) is a front view of the truck and combine which shows the state at the time of throwing a grain into the loading platform of a truck from a combine. .

  As shown in the figure, the combine having the above-described configuration stores grains in the grain tank 6 by a cutting operation in the field, and then lays it on the truck 53 parked outside the field from the field. Subsequently, the auger 12 is horizontally turned within the discharge range d2 so that the discharge port 13 is positioned directly above the loading platform 54 of the truck 53, and the position is finely adjusted. Subsequently, the operation of connecting the discharge clutch is performed, and the grain on the combine side is input from the discharge port 13 of the auger 12 to the loading platform 54 of the truck 53. At this time, the rotation position of the guide plate 28 is changed by the operating means 47 so that the grains are evenly introduced to the back side on the near side with respect to the combine in the loading platform 54, and the grain is discharged. The direction is changed along the axial direction of the discharge cylinder 16 of the auger 12.

  According to the combine of this configuration, by adjusting the horizontal turning position of the auger 12 and the rotation position of the guide plate 28, it becomes possible to discharge the grains evenly into the loading platform 54 of the truck 53. Convenience is high.

  In the present combine, when the guide plate 28 is positioned within the discharge prohibition range X2 during the rotation position change operation of the guide plate 28 by the operating means 47, the guide plate 28 is automatically rotated to the fully closed position P2. The control unit 38 may be configured to operate.

  Further, when the guide plate 28 is located within the discharge prohibition range X2, the control unit 38 may be configured so as to hold the disconnected state by restricting the connection operation of the discharge clutch.

  However, in any case, the guide plate 28 is allowed to rotate into the discharge prohibited range X2 only when the discharge clutch is in a disconnected state and the grain is not discharged from the auger 12, and in other cases The control unit 38 is configured so as not to allow it.

Next, based on FIG. 13, a different point from the above-mentioned form is demonstrated about another embodiment of this combine.
FIG. 13: is a conceptual diagram which shows the structure of the opening / closing control of the discharge port by the guide plate which functions as a switching means regarding another embodiment of this combine. In the example shown in the figure, when it is detected that the auger 12 is turned horizontally from the non-discharge range d1 to the discharge range d2 based on the sensing result of the turn potentiometer 44, the motor 33 and the turn potentiometer 46 are detected. Thus, the control unit 38 is configured to rotate the guide plate 28 upward to the fully open position P1 and switch the discharge port 13 to the discharge state.

Next, based on FIG. 14, a different point from the above-mentioned form is demonstrated about another embodiment of this combine.
FIGS. 14A and 14B relate to another embodiment of the combine, wherein FIG. 14A is a side sectional view of the auger tip side showing the configuration of the guide plate rotation control, and FIG. 14B is a main part plan view of the operating means. In the example shown in the figure, the operation means 47 is constituted by an open button 47a and a close button 47b which are momentary switches that can be pushed. Both buttons 47a and 47b are arranged close to each other in the vertical direction. Under the predetermined conditions described above, while the open button 47a is being pressed, the guide plate 28 is driven to rotate toward the fully open position P1. Thus, the control unit 38 is configured so that the guide plate 28 is rotationally driven toward the fully closed position P2 while the close button 47b is being pressed.

  When the operation unit 47 is configured as described above, when the guide plate 28 is stopped in the discharge prohibition range X2 by the operation unit 47, the guide plate 28 is automatically moved closer to the close position P2 or the prohibition position P3. You may comprise the control part 38 so that it may rotate.

Next, based on FIG. 15, a different point from the above-mentioned form is demonstrated about another embodiment of this combine.
FIG. 15: is a sectional side view which shows the structure of the front part side of an auger regarding another embodiment of this combine. In the above example, the distal end side wall 24 faces the proximal end side wall 23 extending in the vertical direction with respect to the discharge tube 16 of the auger 12 in a parallel state, but in the example shown in FIG. The side wall 24 is inclined with respect to the proximal side wall 23 so as to be gradually separated downward. For this reason, the grain from the discharge port 13 can be discharged further to the tip side (right side in FIG. 15) than the tip of the discharge tube 16.

Next, with reference to FIGS. 16 to 19, different points of the present embodiment from the above embodiment will be described.
FIGS. 16 to 18 are a side view, a side sectional view, and a perspective view showing a configuration of the distal end side of the discharge auger in another embodiment of the combine, and FIG. 19A is a view as seen from an arrow A in FIG. (B) is a B arrow view of FIG.

  In the illustrated discharge cover body 18, the amount of extension of the main cover 21 and the sub cover 22 from the auger 12 is set to about half of the above-described form. An elastically deformable transparent cover 56 made of an annular synthetic resin having a shape extends downward as much as the main cover 21 and the sub cover 22 extend. That is, the upper half portion of the discharge cover body 18 is constituted by the main cover 21 and the sub cover 22, and the lower half portion is constituted by the transparent cover 56 made of a flexible member. In addition, an auger operation unit 57 and a camera (not shown) for photographing the lower side of the auger 12 are installed on the distal end surface of the discharge cylinder 16, and a work lamp 58 that illuminates the lower side is provided on the mounting bracket 34 via a stay 59. The outer side of the motor 33 and the like is covered and protected by a side cover 61.

  The transparent cover 56 is formed in a cylindrical shape having a square shape in sectional view by overlapping both ends of a transparent, elastically deformable synthetic resin square sheet. Then, the upper end inner peripheral surface of the transparent cover 56 is brought into contact with the lower end outer peripheral surfaces of the main cover 21 and the sub cover 22 and is bolted in a state where the overlapped portion is positioned on the proximal side wall 23 side. As a result, the transparent cover 56 is attached to the main cover 21 and the sub cover 22.

  When the guide plate 28 is rotated to the fully open position P1, the front half of the guide plate 28 faces the inner peripheral side of the transparent cover 56, and the guide plate 28 rotates at least within the dischargeable range X1. While the position adjustment is being performed, the guide plate 28 is in a state where it can be seen by the operator and the operator via the transparent cover 56. That is, the transparent cover 56 provided in the discharge cover body 18 constitutes a visual means for visually checking the inclined state (grain discharge direction adjusted state) of the guide plate 28. In this combine, there is almost no distance from the base end edge of the discharge port 13 to the base end side wall 23, and the prohibition position P3 is a position rotated 30 degrees from the fully open position P1 toward the fully closed position P2. Is set.

  The mounting bracket 34 is integrally extended toward the distal end side and the proximal end side of the auger 12, and constitutes a distal end side mounting portion 34a and a proximal end side mounting portion 34b. The distal end side attachment portion 34a is configured to cover a part of the outer side of the sector gear 36. The distal end side attachment portion 34a directly detects the rotational position of the rotational shaft 29, thereby rotating the guide plate 28. The rotation potentiometer 46 for detecting the position is bolted. Incidentally, the rotation potentiometer 46 is arranged such that a potentiometer shaft 46a as a detection shaft is arranged on the axis of the rotation shaft 29, and the potentiometer shaft 46a rotates so that the potentiometer shaft 46a and the rotation shaft 29 rotate integrally. Concave and convex engagement is provided at the end of the moving shaft 29.

  A central portion of the above-described stay 59 having a U-shape that is open toward the outer side of the auger 12 in a plan view is attached to and supported by the extension side end of the base end side attachment portion 34b. A work lamp 58 is mounted and supported between both ends of the U-shaped stay 59 so as to be adjustable. The work lamp 58 is supported so as to be rotatable around a shaft 62 connecting both ends of the stay 59. By adjusting the rotation of the work lamp 58, the irradiation position of the work lamp 58 is changed to the axis of the discharge cylinder 16. It is changed along the direction orthogonal to the direction.

  The side cover 61 is fixed to the sub cover 22 by bolts, and is configured to cover and protect the outer side of the sub cover 22 other than the place where the work lamp 58 is installed.

  The auger operation unit 57 includes four auger operation buttons 57a, 57b, 57c, and 57d on the left, right, and top and bottom, and an auger discharge button 57e is provided next to the four auger operation buttons 57a, 57b, 57c, and 57d. The auger 12 is turned horizontally by the left and right auger operation buttons 57a and 57b, and the auger 12 is lifted and lowered by the upper and lower auger operation buttons 57c and 57d. The control unit 38 is configured to perform the above. With this auger operation unit 57, it is possible for an operator at a position other than the driver's seat 4 to perform a horizontal turning operation and a lifting operation of the auger 12 and an on / off operation of the grain discharge drive. Incidentally, the above-described camera is disposed below the auger operation unit 57.

  According to the combine of the above configuration, since the state of the grain discharge direction control by the guide plate 28 can be visually observed through the transparent cover 56 when the grain is discharged from the outlet 13, the change in the grain discharge direction is performed. Can be performed quickly and accurately.

  Further, since the transparent cover 56 can be flexibly deformed and the end portions where the transparent covers 56 are overlapped are not bonded to each other and are positioned on the proximal side wall 23 side in a free state, the rotation is possible. When the guide plate 28 is too close to the proximal side wall 23 side due to the adjustment and the grain is likely to be clogged, the transparent cover 56 is rolled up by the pressure from the grain, and clogging in the vicinity of the grain outlet 13 is performed. Is prevented.

  When the guide plate 28 is rotated to the fully closed position P2, the entire guide plate 28 is located on the inner peripheral surface side of the main cover 21 and the sub cover 22, so that the distal end side of the auger 12 becomes an obstacle. Even if a collision occurs, the guide body 28 is protected by the main cover 21 and the sub cover 22 and is prevented from being damaged.

  Further, since the support member that supports the work lamp 58 is the mounting bracket 34 for mounting and supporting the motor 33, it is not necessary to provide the support member separately, and the number of parts can be reduced and the manufacturing cost can be kept low. It becomes possible.

7 Traveling machine body 13 Discharge port 12 Auger (discharge auger)
18 Discharge cover body 23 Base end side wall (side wall)
24 Tip side wall (side wall)
28 Guide plate (guide body)
38 Control part (regulatory means)
47 Dial operation tool (operation means)
47a Open button (button)
47b Close button (button)
56 Transparent cover
X discharge possible range

Claims (1)

A traveling machine body (7) and a discharge port (13) for discharging grain are formed on the distal end side, and the base end side is supported on the traveling machine body (7) side so that the posture can be changed, and the traveling machine body (7) side A discharge auger (12) for discharging the grains contained in the discharge port (13), and covering the at least part of the lower periphery of the discharge port (13) to disperse the grains from the discharge port (13). A discharge cover body (18) for preventing, and a guide body (28) that is supported so as to be rotatable and that changes the direction of grain discharge by changing the inclination by the rotation adjustment is provided on the inner surface side of the discharge cover body (18). provided, the discharge cover (18) to the guide member by the pivot regulating (28) only set the visibility means viewing the inclined state of the transparent cover (56) the lower portion of the discharge cover (18) And the transparent cover (56) of the discharge cover body (18). When the upper part is made a non-transparent part and is rotated to the dischargeable range (X) where the grain can be discharged, at least a part of the guide body (28) faces the transparent cover (56) side. On the other hand, when the grain is rotated to a position where it is not discharged or hardly discharged, the guide body (28) is housed in the non-transparent portion and does not face the transparent cover (56) side. Thus, the combine which comprised the said visual recognition means by arrange | positioning this guide body (28) .

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